My Fault

Seventeen-year-old Noah has to move into a wealthy new home after her mother Rafaella marries billionaire William Leister. She struggles to adjust to the change and immediately clashes with her new stepbrother, Nick Leister, who is involved in street racing and has a rebellious streak.

On the first evening upon arriving there, Noah is taken to the Leisters' country club for dinner. Although her closet is full of expensive new clothes, the opts for wearing an over-sized Ramones t-shirt. Soon after arriving, both Noah and Nick want to leave. William asks his son to drop her off at home first.

On the way, as Noah and Nick argue, so he forces her out of the car. Forced to hitchhike on the lonely road, she gets a lift by someone heading to a party. Nick turns out to the center of the party, where Noah looks on in disgust as he makes out with multiple women.

Nick catches a party-crasher spike Noah's drink. After throwing him out, he drives Noah home. In the morning, she grills him to find out what happened, which Nick insists was nothing. They coincide later at the beach, then in the evening at a rally.

Noah gets upsetting images sent to her of her boyfriend Dan and her best friend Betty she left behind. Nick offers to help her send her own make-out pictures with him. Before he can get her home, as he had left her in the car, the racer from the other team Ronnie assumes she is racing for him.

Goaded by the other driver, Noah gets behind the wheel. She beats him, surprising everyone with her racing skills. Taunting him that a woman beat him, he reveals that Nick's team automatically loses, a rule unbeknownst to Noah. Not only does Nick have to pay 15,000, but also forfeit his car. Nick then disappears for four days.

Noah and Nick's relationship slowly shifts from hostility to a growing attraction, and despite knowing it is wrong, they start seeing each other in secret. As things heat up between them, Noah begins receiving threatening messages.

Dan shows up, trying to apologise to Noah. Nick taunts him, while doing his best to hide his face to not be recognised. Local guys from the rival gang show up, so Nick fights them off.

On a car ride, it is revealed that Noah had learned about car racing from her father Jonás, who she says is dead. Ending up in an arena, it is revealed they are at a fight club event. Upon discovering that Nick is the star attraction, Noah declares she cannot be around someone so violent again.

William reveals to Nick that Noah's abusive father just got out of jail and is out for revenge. Jonás had beat Rafaella for years, but after he put a knife on Noah, it was her testimony which put him away. She has not been told he is out, as her mom knows it would terrify her.

At a party, the very drunk Noah, who is terrified of the dark, is locked in a closet as a prank. It causes her to have another flashback of the night Jonás had cut her. Nick gets her home, where Noah asks him to sleep by her as she fears nightmares of Jonás.

Jonás has Ronnie kidnap Noah and demands a ransom. Nick teams up with the police to find her, leading to a car chase that ends with Jonás being killed. Even though their relationship is discovered and their parents disapprove, Nick and Noah decide to stay together.